William j



(No Model.)

W. J. WALKER.

' GAR DOOR.

No. 431,926. Patented July 8, l8l ffl IlIlIl llllll II &\

UNITED STATES PATENT. OFFICE.-

WILLIAM J. WVALKER, OF ST. 'LOUIS, MISSOURI, ASSIGNOR OF ONE HALF 'IO LOUIS HAMMERSOHMIDT, OF SAME PLACE.

CAR-DOOR.

SPECIFICATION forming part of Letters Patent No. 431,926, dated July 8, 1890.

Application filed March 2 5 1 8 90- To all whom it may concern.-

Be it known that 1, WILLIAM J. WALKER, of the city of St. Louis, in the State of Missouri, have invented a certain new and use ful Improvement in Oar-Doors, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to certain improvements in the arrangement and manner of opening and closing car-doors; and my invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a side elevation illustrative of my invention. Fig. II is a detail section taken on line II II, Fig. I. Fig. III is a similar view taken on line III III, Fig. I. Fig. IV is a similar View taken on line IV IV, Fig. I. Fig. V is an enlarged detail elevation showing the hand-wheel for moving the door. Fig. V1 is a section taken on line VI VI, Fig. I.

Referring to the drawings, 1 represents part of the body of a car, and 2 the door.

3 represents a rail or track, upon which the door is suspended by brackets 41: having friction-rollers 5, and upon which the door is opened and closed by moving it in line with the car. Each bracket 4 has a hinge-joint 6, which permits the door to be forced laterally toward the body of the car to make a tight joint between them.

7 represents a vertical shaft journaled to the body of the car by suitable boxes 8, and provided at its lower end with a hand-wheel 9, by which it is turned to open and close the door.

10 represents a pinion on the shaft, which engages a rack 11, secured to the door. By turning the shaft the door, as will be readily understood, will be opened and closed.

For the purpose of jamming the door up close against the car -body and making a tight joint when the door is closed, and at the same time leaving the door loose and free to move during the main part of its 1noVement, I make the end of the rack, at the rear Serial No. 346,241. (No model.)

end of the door, inclined in an outwardly direction from 12 to 13, (see Fig. V1,) which, just as the door is about closed, will cause its rear end to be jammed up close against the body of the car, forming a tight joint. The front end of the door is at the same time jammed up close against the body of the car to 5 5 form a tight joint by its inclined front edge 14: coming against the inclined edge 15 of a strip 16, secured to the body of the car. (See Fig. III.) By the use of these inclines (and the hinged brackets, which allow the door to swing laterally) the door is held close up against the body of the car when it is closed, while, during the main part of its'movement, it is loose and free to move without being held into frictional contact with the body of the car.

One of the journal-boxes 8 (I have shown it on the lower one) is provided with a per= forated neck 20, through which, and also through the shaft, a pin 21 is passed, having 7o a head 22 on one end and aperforation in the other end to receive a seal 23. Thus when the door is closed it can be locked by the pin and sealed in its closed position.

I claim as my invention- 1. In combination with a car door and body, a shaft secured to one part and having a pinion, and a rack secured to the other part and having an inclined end and which is engaged by the pinion, substantially as and for the purpose set forth.

2. In combination with acar door and body, a shaft secured to one part and having apinion, a rack secured to the other part and having an inclined end, and a strip having an inclined edge, against which theinclined edge of the door impinges, substantially as and for the purpose set forth.

3. In combination with a car door and body, a track or rail secured to the body, hinged o brackets by which the door is suspended on said track, an inclined strip secured to the body of the car and against which the inclined front edge of the door impinges, a rack secured to the door and having an inclined rear end, a shaft journaled to the body of the car and provided with means for turning it, and aperforated pin for passing through said and a pinion on the shaft engaging said rack, extension and shaft and which is adapted to 10 substantially as and forthe' purpose set forth. receive a seal, substantially as and for the at. In combination Withacar door and body, purpose set forth.

5 a rack secured to the door, pinion and shaft WILLIAM J WALKER.

for moving the door, journal-boxes by which In presence ofsaid shaft is secured to the body of the car THOMAS KNIGHT, and one of which has a perforated extension, E. S. KNIGHT. 

